3 years ago

Why is hydrogen placed with the elements in group 1a??

Chemistry

1 answer:

N76 [4]3 years ago

5 0

Because it has atomic no. = 1 (according to modern periidic table)

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10) Give two example of where you would find elements in our daily lives.

Phoenix [80]

Carbon is found in oil and gas.
Aluminum a light metal used in making pots and pans.
Bromine is used in photography.

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3 years ago

Complete the blank with the correct answer choice. 20 kilograms = _______ grams A. 20 B. 200 C. 2,000 D. 20,000

AVprozaik [17]

Answer:

20 kg = 20000 g

Option d

Explanation:

1 kg = 1000 g

20 kg . 1000 = 20000 g

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3 years ago

A 50 kg cart has 324 kg•m/s of<br> momentum. How fast is the cart going?

PilotLPTM [1.2K]

Answer: 6.48m/s

Explanation:

From the question given, we obtained the following:

M = 50 kg

Velocity =?

Momentum = 324 kg•m/s

Momentum = Mass x Velocity

Velocity = momentum /Mass

Velocity = 324 / 50

Velocity = 6.48m/s

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3 years ago

Look at the periodic table and in the space below, type in the missing element name or symbol

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Fe
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Sn
Phosphorus
Florine
I don’t know
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Silver
Zinc
Nickel

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2 years ago

A map. The map shows the physical features of the Fertile Crescent. The Fertile Crescent begins at the northern end of the Persi

lys-0071 [83]

Answer:

The Persian Gulf and the Tigris and Euphrates

Explanation:

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3 years ago

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